Komatsu 20M LONG REACH FITS KOMATSU PC400 EXCAVATOR

20m Long Reach fits KOMATSU PC400 Excavator 11m boom, 9m stick, 1m3 Bucket, 6 pins, 7 pipes, 23ton linkage, KOMATSU PC400 cylinder. Supporting structure included for easier packing and transportation CE mark  Using Computerized analysis for the stress distribution of the long reach and optimizes the design structure  Using larging milling equipment to improve welding  Using Cold-rolled precision steel for the pipes and finishing by phosphoric acid washing, in order to make the pipes smoother, reducing hydraulic oil flow resistance and reducing oil circuit pollution  Using Robotic top quality welding  Using ultrasonic non-destructive testing to ensure the welding quality  Using top Quality boring machine to ensure the parallelism of the pin holes  All products are sandblasted, the appearance of the product is smooth and clean  Using top quality cylinders